US7823980B2 - Pieces for skin members of vehicular seats and methods of manufacturing the same - Google Patents

Pieces for skin members of vehicular seats and methods of manufacturing the same Download PDF

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Publication number
US7823980B2
US7823980B2 US12/243,266 US24326608A US7823980B2 US 7823980 B2 US7823980 B2 US 7823980B2 US 24326608 A US24326608 A US 24326608A US 7823980 B2 US7823980 B2 US 7823980B2
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United States
Prior art keywords
leather
adhering
base member
sewing
piece
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US12/243,266
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US20090146483A1 (en
Inventor
Yoshitaka NIWA
Soji Yasukawa
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Toyota Boshoku Corp
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Toyota Boshoku Corp
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Assigned to TOYOTA BOSHOKU KABUSHIKI KAISHA reassignment TOYOTA BOSHOKU KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NIWA, YOSHITAKA, YASUKAWA, SOJI
Publication of US20090146483A1 publication Critical patent/US20090146483A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58—Seat coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58—Seat coverings
    • B60N2/5891—Seat coverings characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for

Definitions

  • the present invention relates to a piece for a skin member of a vehicular seat constituting an outer surface of the vehicular seat, particularly relates to a piece for a leather-made skin member.
  • a skin member of a vehicular seat is formed by sewing together a plurality of pieces.
  • Each piece includes a leather and a base member in layers in a leather-made case.
  • the skin and the base member are bonded by an adhering agent or sewing (refer to Japanese Laid-Open Patent Publication No. 2005-6874, Japanese Laid-Open Patent Publication No. H08-309048 and Japanese Laid-Open Patent Publication No. H06-285277).
  • a piece for a skin member of a vehicular seat having a constitution including an adhering portion adhering a leather and a base member and a sewing portion of sewing the leather and the base member in one piece and capable of alleviating a problem which can be brought about between the portions.
  • One aspect of the present invention can include a piece for a skin member of a vehicular seat having a base member and a leather laminated to the base member.
  • the base member includes a cushion seat having an elastic performance and a base cloth adhered to the cushion seat in layers.
  • the base member and the leather include an adhering portion bonded by an adhering agent in layers, a sewing portion formed by being sewn outer peripheral portions of the base member and the leather in layers, and a nonbonding portion therein the base member and the leather are not bonded between the adhering portion and the sewing portion.
  • the nonbonding portion can alleviate a problem which can be posed between the adhering portion and the sewing portion.
  • the leather when the leather is exerted with an external force, the leather is deformed integrally with the base member at the adhering portion, the leather is deformed by being shifted relative to the base member at the sewing portion. Therefore, since a method of absorbing the force differs between the adhering portion and the sewing portion, a strange feeling can be brought about between the adhering portion and the sewing portion or a wrinkle can be brought about in being seated.
  • the nonbonding portion can alleviate a difference in deformation between the adhering portion and the sewing portion. Therefore, the strange feeling or the wrinkle can be alleviated by the nonbonding portion.
  • FIG. 1 is a perspective view of a vehicular seat
  • FIG. 2 is a development view of a skin member
  • FIG. 3 is a cross-sectional view of a piece for the skin member
  • FIG. 4 is a front view of a side piece
  • FIG. 5 is a right side view of a part of the vehicular seat
  • FIG. 6 is a cross-sectional view of the piece for the skin member around a recess portion
  • FIG. 7 is a cross-sectional view of the piece for the skin member when an adhering portion of the piece is set on the recess portion.
  • a vehicular seat 10 includes a seat cushion 10 a (also called a lower seat member) and a seat back 10 b (also called a upper seat member).
  • the seat back 10 b is connected to a rear portion of the seat cushion 10 a to be able to adjust an angle therebetween.
  • the seat cushion 10 a and the seat back 10 b include a frame, not illustrated, a pad mounted to the frame, and a skin member 1 covering an outer surface of the pad.
  • the skin member 1 is constituted by a plurality of pieces 2 as shown in FIGS. 1 and 2 .
  • the skin member 1 on a side of the seat cushion 10 a is constituted by a center piece 2 a , left and right side pieces 2 b and 2 c and left and right side face pieces 2 d and 2 e .
  • the pieces 2 a through 2 e extend in a front and rear direction of the seat cushion 10 a . Further, the pieces are aligned in a short direction (left and right direction) and seamed together by a sewing machine.
  • the skin member 1 of the seat back 10 b is constituted by a center piece 2 f , left and right side pieces 2 g and 2 h and left and right side face pieces 2 i and 2 j .
  • the pieces 2 f through 2 j extend in an up and down direction of the seat back 10 b . Further, the pieces are aligned in the short direction (left and right direction) and seamed together by a sewing machine.
  • the skin member 1 is constituted by a plurality of layers as shown in FIG. 3 , includes a leather 3 on a surface side and includes a base member 6 on a back side.
  • the leather 3 can be an animal hide of a cattle hide, a horse hide or the like.
  • the base member 6 includes a cushion (cushion seat) 4 and a base cloth 5 . Further, the cushion 4 and the base cloth 5 can be bonded by an adhering agent over an entire face thereof.
  • the cushion 4 can be formed by an elastic material.
  • the elastic material can be a slab urethane (in other words, foamed member comprising soft urethane foam), needle punch carpet, 3D net (made from nylon or polyester or the like), a nonwoven cloth of felt or the like.
  • the base cloth 5 is formed by a woven cloth (for example, tricot), nonwoven cloth (for example, nylon species) or the like.
  • a thickness of the cushion 4 is preferably equal to or larger than 5 mm from a view point of a spring performance, further preferably, 10 ⁇ 2 mm.
  • the leather 3 is bonded to a surface of the base member 6 by adhering or sewing.
  • the side piece 2 b includes an adhering portion 7 and a sewing portion 8 in one piece.
  • the leather 3 and the base member 6 are adhered by an adhering agent.
  • the leather 3 and the base member 6 are sewn at outer peripheral portions thereof by a sewing machine.
  • the side piece 2 b includes the adhering portion 7 substantially at a half thereof in a longitudinal direction and includes the sewing portion 8 substantially at a remaining half thereof.
  • the side piece 2 b includes a nonbonding portion between the adhering portion 7 and the sewing portion 8 .
  • the leather 3 and the base member 6 are not bonded.
  • a width of the nonbonding portion 9 is set to, for example, 20 ⁇ 10 mm.
  • the nonbonding portion 9 crosses the side piece 2 b in a short direction substantially at a center of the side piece 2 b to divide the adhering portion 7 and the sewing portion 8 .
  • the base member 6 and the leather 3 are cut substantially in the same shape by a press or the like.
  • an adhering agent is coated at a portion of the surface of the base member 6 .
  • other portion is masked and the adhering agent is coated by a spray or the like under the state.
  • the leather 3 is laminated on the surface side of the base member 6 and a portion of the base member 6 and a portion of the leather 3 are adhered (refer to FIG. 3 ).
  • the base member 6 and the leather 3 are sewn by a sewing machine along outer peripheral portions thereof while avoiding the nonbonding portion 9 . In other words, the sewing is carried out along three sides of the outer peripheral portions. Thereby, the adhering portion 7 and the sewing portion 8 and the nonbonding portion 9 are formed at the side piece 2 b.
  • the center pieces 2 a and 2 f and the side pieces 2 c , 2 g and 2 h include the adhering portions 7 and the sewing portions 8 and the nonbonding portions 9 .
  • the side face pieces 2 d , 2 e , 2 i and 2 j include the sewing portions 8 only. That is, the side face pieces 2 d , 2 e , 2 i and 2 j are bonded by sewing the leather 3 and the base member 6 along entire peripheries of outer peripheral portions.
  • the adhering portion 7 is arranged at a rear side portion of the seat cushion 10 a or a lower side portion of the seat back 10 b .
  • the sewing portion 8 is arranged at a front side portion of the seat cushion 10 a or at an upper side portion of the seat back 10 b .
  • the seat back 10 b includes a recess portion 10 c at an upper side portion. Further, a surface of the recess portion 10 c is installed with the sewing portion 8 .
  • a peripheral length difference is produced between the back face side and the surface side.
  • a fold-bend portion 4 a is brought about at the cushion 4 by the peripheral length difference.
  • the leather 3 is not adhered to the cushion 4 , and therefore, the leather 3 is not folded to bend along with the cushion 4 . Therefore, a wrinkle is not brought about in the leather 3 .
  • a fold-bend portion 4 b can be formed at the cushion 4 by the peripheral length difference produced between the back face side and the surface side. Further, the fold-bend portion 4 b is brought about also at the leather 3 by following the cushion 4 . Therefore, a wrinkle can be formed at the leather 3 . Therefore, according to the present invention, the wrinkle of the leather 3 shown in FIG. 7 can be restrained from being brought about (as shown in FIG. 6 ).
  • the pieces 2 a through 2 c , and 2 f through 2 h include the adhering portions 7 and the sewing portions 8 and include the nonbonding portions 9 between the adhering portions 7 and the sewing portions 8 . Therefore, a problem which can be posed between the adhering portion 7 and the sewing portion 8 can be alleviated by the nonbonding portion 9 .
  • the leather 3 is exerted with an external force, the leather 3 is deformed integrally with the base member 6 at the adhering portion 7 , the leather 3 is deformed by being shifted relative to the base member 6 at the sewing portion 8 .
  • the nonbonding portion 9 can alleviate a difference in deformation between the adhering portion 7 and the sewing portion 8 . Therefore, the strange feeling or the wrinkle can be alleviated by the nonbonding portion 9 .
  • the adhering portion 7 is arranged at the rear side portion of the seat cushion 10 a , the rear side portion is adjacent to the seat back 10 b .
  • the adhering portion 7 is arranged at the lower side portion of the seat back 10 b , the lower side portion is adjacent to the seat cushion 10 a .
  • the rear side portion of the seat cushion 10 a or the lower side portion of the seat back 10 b is a portion at which the leather 3 is easy to be pulled since a passenger slides the body in getting in and off a vehicle.
  • the leather 3 is adhered to the base member 6 .
  • the base member 6 can restrain the stretching of the leather 3 when a user gets in and out of the vehicle. Further, the nonbonding portion 9 can be alleviated a difference in the stretch of the leather 3 which can be produced between the adhering portion 7 and the sewing portion 8 .
  • the sewing portion 8 is arranged at an outer surface of the recess portion 10 c of the seat 10 .
  • the peripheral length difference is produced between the surface side and the rear face side of the piece 2 .
  • the base member 6 is folded to bend by the peripheral length difference.
  • the recess portion 10 c is arranged with the sewing portion 8 and at the sewing portion 8 , the leather 3 is not adhered to the base member 6 . Therefore, the leather 3 is not folded to bend along with the base member 6 and a wrinkle can be restrained from being formed in leather 3 .
  • the piece 2 is produced by a method first forming the adhering portion 7 and then forming the sewing portion 8 thereafter. Therefore, the piece 2 can be formed more easily than by a reverse method thereto.
  • the sewing portion 8 is formed, thereafter, the adhering portion 7 is formed, it is necessary to coat the adhering agent on the base member 6 while pealing up the leather 3 at the portion constituting the adhering portion 7 .
  • the pealing up operation is not used, resulting in a more efficient masking operation.
  • a shift between the leather 3 and the base member 6 can be produced around a distal end of the sewing, however the nonbonding portion 9 can also alleviate the shift.
  • the piece 2 includes the base cloth 5 at a side face opposed to the leather 3 . Therefore, when the base member 6 is fed by a feed dog of the sewing machine, the base cloth 5 can be fed by the feed dog. Therefore, in comparison with a case of feeding the cushion 4 by the feed dog, the base member 6 can be fed smoothly by the feed dog.
  • the base member 6 includes the cushion 4 on the surface side and includes the base cloth 5 on the back side.
  • the base member including the base cloth on the surface side and including the cushion seat on the back side may be a base member including the base cloth on the surface side and including the cushion seat on the back side.
  • the base member 6 includes respective single layers of the cushion 4 and the base cloth 5 .
  • the adhering portion 7 is precedingly formed and the sewing portion 8 is formed thereafter.
  • the sewing portion 8 is formed thereafter.
  • the skin member 1 includes three sheets of the pieces 2 including the adhering portions 7 and the sewing portions 8 proximately to the center.
  • the skin member 1 includes three sheets of the pieces 2 including the adhering portions 7 and the sewing portions 8 proximately to the center.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Laminated Bodies (AREA)
US12/243,266 2007-12-07 2008-10-01 Pieces for skin members of vehicular seats and methods of manufacturing the same Active US7823980B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007317031A JP5098612B2 (ja) 2007-12-07 2007-12-07 乗物用シートの表皮材用ピースおよびその製造方法
JP2007-317031 2007-12-07

Publications (2)

Publication Number Publication Date
US20090146483A1 US20090146483A1 (en) 2009-06-11
US7823980B2 true US7823980B2 (en) 2010-11-02

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US12/243,266 Active US7823980B2 (en) 2007-12-07 2008-10-01 Pieces for skin members of vehicular seats and methods of manufacturing the same

Country Status (4)

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US (1) US7823980B2 (fr)
EP (1) EP2070763B1 (fr)
JP (1) JP5098612B2 (fr)
CN (1) CN101450785B (fr)

Cited By (18)

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US20100181818A1 (en) * 2007-07-19 2010-07-22 Tomoyuki Mashimo Suspension working method, and vehicular seat
US20110187176A1 (en) * 2008-07-24 2011-08-04 Faurecia Sieges D'automobile Motor vehicle seat upholstery formation
US20120175935A1 (en) * 2011-01-07 2012-07-12 Lear Corporation Leather trim cover assembly with stretch reduction
US20120212028A1 (en) * 2011-02-22 2012-08-23 Toyota Boshoku Kabushiki Kaisha Vehicle seat
US20140049089A1 (en) * 2012-01-25 2014-02-20 Lear Corporation Seat cushion assembly
US20160137112A1 (en) * 2013-07-04 2016-05-19 Tachi-S Co., Ltd. Seat cushion
US20160347221A1 (en) * 2015-05-26 2016-12-01 Toyota Boshoku Kabushiki Kaisha Seat cover and vehicle seat
US20180015859A1 (en) * 2015-02-03 2018-01-18 Tachi-S Co., Ltd. Seat-cover outer-skin material, seat cover, and vehicle seat
US10040381B2 (en) 2015-04-16 2018-08-07 Faurecia Sieges D'automobile Alignment of motor vehicle seat cap pieces
US20180334064A1 (en) * 2017-05-18 2018-11-22 Lear Corporation Method of manufacturing a seat back cushion assembly and cushion assembly made thereby
US10137615B2 (en) 2013-08-02 2018-11-27 Faurecia Sieges D'automobile Method for forming motor vehicle seat uphosltery
US20190100122A1 (en) * 2017-10-04 2019-04-04 Ford Global Technologies, Llc Waterproof skinned bench seat
US10377277B2 (en) * 2014-12-25 2019-08-13 Tachi-S Co., Ltd. Vehicle seat, and vehicle-seat production method
US10457174B2 (en) 2013-08-02 2019-10-29 Faurecia Sieges D'automobile Forming of motor vehicle seat upholstery
US10471867B2 (en) * 2017-07-06 2019-11-12 Toyota Boshoku Kabushiki Kaisha Vehicle seat
US10604045B2 (en) 2017-05-18 2020-03-31 Lear Corporation Method of manufacturing a seat back and cushion assembly
US11027632B2 (en) * 2017-03-03 2021-06-08 Ts Tech Co., Ltd. Conveyance seat
US20230055534A1 (en) * 2020-01-19 2023-02-23 Yanfeng International Automotive Technology Co., Ltd. Sewing structure for improving appearance of seat cover

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JP5277912B2 (ja) * 2008-11-28 2013-08-28 トヨタ紡織株式会社 乗物用シート
CN102452341A (zh) * 2010-10-18 2012-05-16 苏州老人头汽车用品制造有限公司 一种座椅布套的拼接方法
JP5855403B2 (ja) * 2011-09-22 2016-02-09 株式会社タチエス 空調シート
US8851569B2 (en) * 2011-09-23 2014-10-07 Chang-Hsien Ho Full-cover and light-weight safety seat for child
JP6123239B2 (ja) * 2012-11-06 2017-05-10 コクヨ株式会社 椅子の表皮材
JP5976511B2 (ja) * 2012-11-26 2016-08-23 東洋ゴム工業株式会社 シートパッド
CN103303172B (zh) * 2013-05-20 2016-02-24 芜湖瑞泰汽车零部件有限公司 一种座椅面套打板方法
US9277828B2 (en) * 2013-10-29 2016-03-08 Keely Watson Zip-away cover
JP6549382B2 (ja) * 2015-02-09 2019-07-24 株式会社タチエス 車両用シートおよび車両用シートの製造方法
FR3041298B1 (fr) * 2015-09-17 2017-11-24 Faurecia Sieges D'automobile Realisation d'une couture dans une coiffe pour siege de vehicule automobile
JP6704707B2 (ja) * 2015-10-26 2020-06-03 株式会社タチエス 車両用シートのトリムカバーの縫製処理方法、及びそれを用いた車両用シート
JP6572777B2 (ja) * 2016-01-08 2019-09-11 トヨタ紡織株式会社 縫製構造及びこれを備えた乗物用シートの表皮材
CN105904802B (zh) * 2016-04-13 2017-11-14 浙江阿波罗皮革制品有限公司 数码提花功能沙发面料的制作方法
CN105882050B (zh) * 2016-04-13 2017-11-14 浙江阿波罗皮革制品有限公司 耐高温阻燃pu革的制作方法
CN105882051B (zh) * 2016-04-13 2017-11-14 浙江阿波罗皮革制品有限公司 高耐寒pu沙发革的制作方法
CN105821676B (zh) * 2016-04-13 2017-11-28 浙江阿波罗皮革制品有限公司 消音阻尼降噪合成沙发革的制作方法
JP6745192B2 (ja) * 2016-10-18 2020-08-26 株式会社タチエス シートトリムカバーの製造方法
CN106541868A (zh) * 2016-11-03 2017-03-29 江苏昊晟塑业科技有限公司 汽车座椅防滑座垫
US10737592B2 (en) * 2018-05-30 2020-08-11 Ford Global Technologies, Llc Seat back rotation limiter

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US3712673A (en) * 1972-01-27 1973-01-23 Swenson Corp Resilient seat cushion with crease-preventing means
US3874731A (en) * 1973-05-04 1975-04-01 Ford Motor Co Injection molded seating
US4650251A (en) * 1985-01-31 1987-03-17 Tachikawa Spring Co., Ltd. Welt in a seat and method of making same
US4798416A (en) * 1986-07-12 1989-01-17 Daimler-Benz Aktiengesellschaft Seat, particularly a vehicle seat
US4849046A (en) * 1987-05-29 1989-07-18 Ikeda Bussan Co., Ltd. Method of producing outer cushion layer of seatback
US5016941A (en) * 1990-03-13 1991-05-21 Tachi-S Co. Ltd. Structure of vehicle seat
JPH06285277A (ja) 1993-03-31 1994-10-11 Araco Corp 車両用シートのための表皮加工体
US5630643A (en) * 1993-06-01 1997-05-20 Steelcase Inc Upholstered chair with two-piece shell
US5544942A (en) * 1993-06-29 1996-08-13 Bertrand Faure Automobile "Bfa" Motor vehicle seat padding
US5395473A (en) * 1993-09-07 1995-03-07 General Motors Corporation Bonded seat assembly
US5607201A (en) 1993-11-08 1997-03-04 Ikeda Bussan Co., Ltd. Vehicle seat having an overlayer unbound to an underlayer that is bound to a seat pad
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US20090146483A1 (en) 2009-06-11
CN101450785A (zh) 2009-06-10
JP2009136544A (ja) 2009-06-25
JP5098612B2 (ja) 2012-12-12
EP2070763A3 (fr) 2010-01-13
EP2070763B1 (fr) 2013-05-01

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